Mark Zuckerberg

Even when meeting President Obama, Zuck still stuck to jeans, though he did ditch the hoodie and NorthFace apparel for a sport jacket and tie. Small steps, right? Photo credit: Elaine Chan and Priscilla Chan

Just because you're a brilliant, tech-savvy entrepreneur or IT worker doesn't mean you have to dress like a Wall Street executive. Just ask Mark Zuckerberg, the billionaire founder of Facebook who prefers hooded sweatshirts and jeans to power suits. The media paid a lot of attention this week to a comment by Michael Pachter, an analyst for Wedbush Securities, who said Zuckerberg's attire showed a lack of maturity. Pachter's comments dovetailed with the Facebook road show, as Zuckerberg and his executives offered a glimpse of the company before the social network's initial public offerings. But Zuck is not the first tech entrepreneur to buck the trend of business suits for a more casual, and dare we say, iconic look. While fashion mavens may debate the runway-readiness of a hoodie, other high-tech geniuses like the late Steve Jobs, co-founder of Apple, and Bill Gates (you've heard of him, no?) have adopted their ownlet's call it uniquestyle of dress. Let's take a look at some of the IT entrepreneurs who have made their mark, for better or for worse (sometimes way worse), on the world of CEO fashionand one classic example of the ultimate hipster genius.

Nathan Eddy is Associate Editor, Midmarket, at eWEEK.com. Before joining eWEEK.com, Nate was a writer with ChannelWeb and he served as an editor at FierceMarkets. He is a graduate of the Medill School of Journalism at Northwestern University.